74604749 has 2 divisors, whose sum is σ = 74604750. Its totient is φ = 74604748.

The previous prime is 74604727. The next prime is 74604797. The reversal of 74604749 is 94740647.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52345225 + 22259524 = 7235^2 + 4718^2 .

It is an emirp because it is prime and its reverse (94740647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74604749 - 2¹² = 74600653 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74604949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37302374 + 37302375.

It is an arithmetic number, because the mean of its divisors is an integer number (37302375).

Almost surely, 2^74604749 is an apocalyptic number.

It is an amenable number.

74604749 is a deficient number, since it is larger than the sum of its proper divisors (1).

74604749 is an equidigital number, since it uses as much as digits as its factorization.

74604749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 74604749 is about 8637.4040660374. The cubic root of 74604749 is about 420.9742105570.

The spelling of 74604749 in words is "seventy-four million, six hundred four thousand, seven hundred forty-nine".